Douglas Brinkley, the prolific Rice University historian who has already twice graced the cover of Rolling Stone (first for his interview of Bob Dylan in 2009, then for his interview of Barack Obama in 2012) has done it again.Brinkley's interview with Vice President Joe Biden made the cover of the most recent issue of Rolling Stone.A taste:There is a keen Kennedy-like vigor to Joe Biden that overwhelms any room. As was once said of Theodore Roosevelt, he, too, wants to be the bride at every wedding and the corpse at every funeral. Unlike President Obama, who speaks in interviews with Hemingway-esque sparseness, Biden rambles like Thomas Wolfe, painting a robust picture of an ever-changing America where coal miners will soon be working in clean-tech jobs, gun-safety laws will be tougher and China will be reined in by the White House from poisoning the planet with megatons of choking pollutants....